Adding another PDL for visibility.

Regards
Rajiv Jain

On Sat, Jul 18, 2026 at 11:33 AM Rajiv Jain <
[email protected]> wrote:

> Hello Fellows,
>
> Just to elaborate on Piyush’s ask, cloudstack user has got a new feature
> added where while creating independent cloudstack-volume, user would get
> ‘create on storage’ toggle appearing on the UI.
>
> If toggle is enabled then cloudstack calls for createAsync workflow
> immediately and desired objects would be created on the underneath storage
> and state of volume would appear as ready in CS UI.
>
> If toggle is disabled then CS only creates metadata in the CS DB, no call
> goes to underneath storage. And volume state would appear as allocated. And
> while attach workflow on this volume, call would go to storage and it would
> create desired objects on the storage.
>
> Framework code is added in the VolumeServiceImpl class for this toggle.
>
> Query is, while this toggle is enabled, format for the disk is expected to
> be set as per chosen hypervisor. In absense of this format, subsequent
> workflow of snapshot is found to be failed.
>
> We propose to set this format in VolumeServiceImpl itself by which all the
> vendors will get benefit of it. Or we can add this setter for format in our
> driver class for creAsync method.
>
> Can you share you thoughts on this soon since it is important to go in
> 4.23 else multiple customers may get impacted in snapshot workflows.
>
> Regards
> Rajiv Jain
>
>
>
> On Fri, 17 Jul 2026 at 7:59 PM, Piyush Srivastava <
> [email protected]> wrote:
>
>> Hi Team,
>>
>> I was using the "Create on Storage" option in Create Volume wizard for
>> creating and attaching the volume to a particular instance.
>> I can see the volume is created as well as attached to the instance.
>> But when I cross checked the db for the format set for this volume , I
>> see it as "NULL" rather than actual format .
>> Is there any issue seen due to this null format set?
>>
>> [image: image.png]
>> mysql> select name,format from volumes where name="testAttach1";
>> +-------------+--------+
>> | name        | format |
>> +-------------+--------+
>> | testAttach1 | NULL
>>
>> I have observed the issue while creating a snapshot for that volume. Checking
>> here for blast radius of the issue before raising a PR and if it is
>> critical for 4.23.0.
>>
>> Thanks,
>> Piyush
>>
>

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